BORATE-FREE, AQUEOUS COMPOSITION FOR CLEANING AND TREATING METALLIC SUBSTRATES

The present invention relates to a borate-free, aqueous cleaning and treating composition comprising at least one metasilicate (A); at least one orthophosphate (B); at least one phosphate (C) selected from the group consisting of diphosphates and triphosphates; at least one surfactant (D) selected f...

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Bibliographische Detailangaben
Hauptverfasser:	KOMP Carola, ROESNER Berit
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DETERGENT COMPOSITIONS DETERGENTS DIFFUSION TREATMENT OF METALLIC MATERIAL FATTY ACIDS THEREFROM INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION USE OF SINGLE SUBSTANCES AS DETERGENTS
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Beschreibung
Zusammenfassung:	The present invention relates to a borate-free, aqueous cleaning and treating composition comprising at least one metasilicate (A); at least one orthophosphate (B); at least one phosphate (C) selected from the group consisting of diphosphates and triphosphates; at least one surfactant (D) selected from the group consisting of anionic surfactants and non-ionic surfactants; and wherein the aqueous cleaning and treating composition has a pH value at 20 Â°C in the range from 11.0 to 12.8; and possesses a molar ratio of Si atoms to P atoms being from 0.75:1 to 1:0.75, based on the sum of the Si-containing metasilicates (A) and the sum of the P-containing orthophosphates (B), diphosphates (C) and triphosphates (C). The invention further relates to solid mixtures. The invention also relates to a method for cleaning and treating metallic substrates making use of the compositions and the use of the compositions to clean metallic substrates and treat metallic substrates by forming a Si-containing layer on the surface of the metallic substrates. La presente invención se refiere a una composición acuosa de limpieza y tratamiento libre de borato que comprende al menos un metasilicato (A); al menos un ortofosfato (B); al menos un fosfato (C) seleccionado del grupo formado por difosfatos y trifosfatos; y al menos un tensioactivo (D) seleccionado del grupo que consiste en tensioactivos aniónicos y tensioactivos no iónicos; y en donde la composición acuosa de limpieza y tratamiento tiene un valor del pH a 20 °C en el intervalo de 11,0 a 12,8; y posee una relación molar de átomos de Si a átomos de P de 0,75:1 a 1:0,75, con referencia a la suma de los metasilicatos que contienen Si (A) y la suma de los ortofosfatos que contienen P (B), difosfatos (C) y trifosfatos (C). La invención se refiere además a mezclas sólidas. La invención también se refiere a un método para limpiar y tratar sustratos metálicos haciendo uso de las composiciones y al uso de las composiciones para limpiar sustratos metálicos y tratar sustratos metálicos formando una capa que contiene Si sobre la superficie de los sustratos metálicos.